Genuine LiftMaster K41-0388-000MC main control board with battery backup for the Maxum industrial DC operators.
Fitment: LiftMaster Maxum JDC, RJDC, JHDC, TDC.
Common to every Maxum operator, whatever the door weight or voltage.
Ordering the right part depends on the full model number, which is printed on the operator label. Call GateHouse Supplies if you are not sure — we service these units every day.